Michigan Medical News 1882 Vol 5 PDF Download

Excerpt from The Cincinnati Medical News, Vol. 15: February, 1882 Retrograde and Lateral Movements with Hypnotism. BY isaac on, M. D. When cold is applied to certain definite regions of the skin in pigeons, they exhibit retrograde movements alter nating with fits of stupor. The agent, so far, has been rhigolene, to produce the necessary cold. Ether, when vaporized, was totally unable to produce any effect. The region to which the cold must be applied is the skin of the back of the neck. These phenomena were first oh served by Dr. S. Weir Mitchell. I have lately been study ing the effect of irritants on the skin of pigeons, and the seat of the phenomena produced. I found that ether, alcohol, chloroform and nitrite of amyl were powerless to produce the effects seen after the application of rhigolene. If, however, bisulphide of carbon was dropped on the skin of the back of the neck, then all the phenomena produced by rhigolene ensued in a marked manner. Thus a single drop of the bisulphide of carbon applied to the back of the neck of the pigeon caused him to retrograde and to pass into states of quietude. When bisulphide of carbon is applied to the skin of the neck in pigeons, the birds run forward as if no agent was acting on them, but sud denly they commence to run backwards, it being quite evidently against their will, as they seek to overcome the tendency. During the period ot'quietude, the body sinks down somewhat, the head being drawn in close to the body and bent towards the ground to a considerable ex. Tent. That these phenomena are due to a simple irrita tion of the nerves, is proved by an experiment where I attached a small bulldog forceps to the skin on the back of the neck, when similar retrograde movements ensued, followed by a period 01 quietude. As remarked by Dr. Mitchell, these phenomena are re ex in their nature. Here the mechanical irritation of the sensory nerves is re ected94 retrograde and lateral movements with hypnotism. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."